[Maybe modern AU]
Alright, let's say you were a teenager around seventeen and you've been too busy with school, with the ton of homework they give you and your exams
You've been studying non-stop, day and night, for your exams. You rarely had a good sleep or ate normally and that's something Poseidon noticed. He never really got the whole "School" thing. No, it wasn't because he was stupid. He was in fact very smart, as Athena if not more. He just couldn't understand why kids would sit in a classroom and write all day
Tonight you were studying again and he was floating around you, observing your homework, your thick books and the tins of essays you had to do. Your hand was moving like the wind on the paper while you wrote as you tried to multitask and talk to him at the same time. That's how you'll spent the last day of school before summer break. Ah..summer...his season. Great.
"So… you're telling me you kids sit in a class for ten hours of your days and listen to an adult lecturing as you write 24/7…? Do you even eat there? Do they let you or offer you kids food?"